[Python-Dev] time.sleep(-1) behaviour

Victor Stinner victor.stinner at haypocalc.com
Fri Jul 1 14:48:19 CEST 2011


Le vendredi 01 juillet 2011 à 08:17 -0400, Tim Lesher a écrit :
> On Thu, Jun 30, 2011 at 15:13, Ulrich Eckhardt
> <ulrich.eckhardt at dominolaser.com> wrote:
> > Hi!
> >
> > This is a request for clarification for the thread "how to call a function for
> > evry 10 seconds" from the user mailinglist/newsgroup.
> >
> >
> > The gist is this:
> > 1. On Linux/Python 2.6, time.sleep(-1.0) raises an IOError.
> > 2. On MS Windows/Python 2.5 or 2.7 this sleeps forever. It seems that
> > converting this to a 32-bit integer for Sleep() causes an underflow.
> 
> > 3. Is the behaviour under MS Windows acceptable or a bug?
> 
> On the Windows side, Sleep(-1) as "infinite" is correct and documented:
> 
> http://msdn.microsoft.com/en-us/library/ms686298(v=vs.85).aspx

I answered on the bug tracker:
http://bugs.python.org/issue12459

Victor




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